Libraries long have had a reputation as quiet places, places where you’re shushed if you speak above a whisper, possibly if you speak at all aside from asking directions to the card catalog.

But that traditional image of libraries is as outdated as card catalogs, which largely have been replaced by the same information on computers.

“Libraries have changed a lot, especially in the past 25 years,” Jacksonville Public Library Director Chris Ashmore said. “… People who haven’t visited a library in a long time, who have their childhood memories, will be surprised.”

Ashmore and the library are giving patrons a chance to get over their surprise Saturday, when the library hosts is first Bookstock: A Backyard Roots Music Festival.

“We have a large green space outside the library that’s fenced in,” Ashmore said. “We have a regular library series inside, Music Under the Dome. We kind of got the idea, since a lot of these (performers) are the same genre — kind of roots-folksy — that we’d get about five of them lined up and have something outside.”

Music Under the Dome involves keeping the library open late on occasional Sundays for an afternoon performance, and the concerts are scheduled so the sound won’t disturb patrons still seeking the traditional quiet of the library, Ashmore said.

“I wouldn’t be playing music in the library during the day,” he said.

He even had some limits on what the library would offer outdoors during the day, he said.

“We definitely wanted to make use of the outdoor space,” he said. “We weren’t going to have a rock concert. I don’t think we’d draw as many people if we tried to do Lollapalooza in the backyard. And I don’t think classical music would work outdoors.”

Roots-folk it was.

Tom Irwin will take the stage at 10 a.m., followed by Wil Maring at 11:30 a.m., Michael Johnathon at 1 p.m., The Tall Trees at 2:30 p.m. and Harpeth Rising at 4 p.m.

The musicians all are well known and popular in roots and folk music circles, Ashmore said.

“We started booking artists for this about a year ago,” he aid. “That’s how far out we had to book to line up everything.”

For example, Nashville, Tennessee-based Harpeth Rising blends folk, newgrass, rock and classical into its own unique sound. Their most recent album, “Shifted,” debuted at No. 1 on the folk-DJ charts. Ben Bedford, a member of The Tall Trees, was named a few years ago as one of the 50 most significant folk singer-songwriters of the past 50 years.

Along with parking in the library lot, Ashmore said there is plenty of municipal parking in the area.

Gates will open at 9:30 a.m. in the green space south of the library building. Admission is free. Patrons are encouraged to bring lawn chairs or blankets, along with their own food and drinks, though a concession stand will be available.

Performers also will be selling CDs and other merchandise.

With breaks between the individual performances and several nearby restaurants, patrons also have the option of going off-site for food.

“I’m curious to see how many people come, how many people decide they want to stay all day, how many people come and go,” he said. “I really have no idea. This is a trial run, but I think it’s going to go well.”